Unit 5 Immune System
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The document describes the human immune system and its defenses against pathogens. It discusses both nonspecific defenses like physical and chemical barriers provided by the skin, mucus, stomach acids, and inflammatory response, as well as specific defenses like the antibody-mediated and cell-mediated responses involving B cells, T cells, memory cells, and vaccines.
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Unit 5 Immune System
- 1. Unit 5 PROTECTION & CONTROL
- 2. Your assignment is to describe the “Super Human” powers this superhero possesses. These powers protect him from accident or injury. Super Hero
- 3. Skeletal System Fight or Flight Response Instinct Muscular System Reflexes Super Hero
- 5. The “Bubble Boy ”
- 12. First Line of Defense Non-Specific
- 13. First Line of Defense Non-Specific
- 33. IMMUNE ATTACK
- 38. Lymphatic System
- 42. Lymphatic System
- 45. Lymphatic System
- 47. Lymphatic System
- 49. Lymphatic System
Editor's Notes
- Colloids Colloids are mixtures with particle sizes that consist of clumps of molecules. The particles have dimensions between 2 to 1000 nanometers. The colloid looks homogeneous to the naked eye. Fog and milk are examples of colloids. Colloids frequently appear "murky" or "opaque". The particles are large enough to scatter light. You have experience with the way fog interacts with the light from car headlights. Colloids generally do not separate on standing. They are not separated by filtration. Suspensions Suspensions are homogeneous mixtures with particles that have diameters greater than 1000 nm, 0.000001 meter. The size of the particles is great enough so they are visible to the naked eye. Blood and aerosol sprays are examples of suspensions. Suspensions are "murky" or "opaque". They do not transmit light. Suspensions separate on standing. The mixture of particles can be separated by filtration.